/*
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 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://github.com/payara/Payara/blob/main/LICENSE.txt
 * See the License for the specific
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 *
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 * file and include the License file at legal/OPEN-SOURCE-LICENSE.txt.
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 * GPL Classpath Exception:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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package com.sun.enterprise.v3.server;

import java.util.LinkedList;
import java.util.List;

import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;
import jakarta.inject.Inject;

import org.glassfish.api.StartupRunLevel;
import org.glassfish.hk2.api.ServiceHandle;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.runlevel.RunLevel;
import org.glassfish.hk2.utilities.BuilderHelper;
import org.jvnet.hk2.annotations.Service;

/**
 * This service is here to start fighterfish if it is available.  This
 * is done to maintain fighterfish compatibility with older versions
 * of glassfish
 * 
 * @author jwells
 *
 */
@Service
@RunLevel(value=StartupRunLevel.VAL, mode=RunLevel.RUNLEVEL_MODE_NON_VALIDATING)
public class FighterFishStartupService {
    private final static String FIGHTERFISH_START_SERVICE = "org.glassfish.osgijpa.extension.JPAStartupService";
    
    @Inject
    private ServiceLocator locator;
    
    private List<ServiceHandle<?>> fighterFishHandles;
    
    @SuppressWarnings("unused")
    @PostConstruct
    private void postConstruct() {
        fighterFishHandles = locator.getAllServiceHandles(
                BuilderHelper.createContractFilter(FIGHTERFISH_START_SERVICE));
        
        for (ServiceHandle<?> fighterFishHandle : fighterFishHandles) {
            fighterFishHandle.getService();
        }
        
    }
    
    @SuppressWarnings("unused")
    @PreDestroy
    private void preDestroy() {
        if (fighterFishHandles == null) return;
        
        List<ServiceHandle<?>> localHandles = new LinkedList<ServiceHandle<?>>(fighterFishHandles);
        fighterFishHandles.clear();
        
        for (ServiceHandle<?> handle : localHandles) {
            handle.destroy();
        }
    }

}
